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Fix bug #9669 Ordering on IF function with FROM_UNIXTIME function fails

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Integer overflow results in wrong field sortlength.


sql/item_cmpfunc.cc:
  Fix bug #9669 Ordering on IF function with FROM_UNIXTIME function fails.
mysql-test/t/func_if.test:
  Test for bug #9669 Ordering on IF function with FROM_UNIXTIME function fails.
mysql-test/r/func_if.result:
  Test for bug #9669 Ordering on IF function with FROM_UNIXTIME function fails.
This commit is contained in:
unknown
2005-06-02 17:00:07 +04:00
parent a6cf849e0d
commit c8e797b5b6
3 changed files with 39 additions and 1 deletions
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17
mysql-test/r/func_if.result
View File

@ -91,3 +91,20 @@ drop table t1;
SELECT NULLIF(5,5) IS NULL, NULLIF(5,5) IS NOT NULL;
NULLIF(5,5) IS NULL NULLIF(5,5) IS NOT NULL
1 0
CREATE TABLE `t1` (
`id` int(11) NOT NULL ,
`date` int(10) default NULL,
`text` varchar(32) NOT NULL
);
INSERT INTO t1 VALUES (1,1110000000,'Day 1'),(2,1111000000,'Day 2'),(3,1112000000,'Day 3');
SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord ASC;
id date_ord text
1 05-03-2005 Day 1
2 16-03-2005 Day 2
3 28-03-2005 Day 3
SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord DESC;
id date_ord text
3 28-03-2005 Day 3
2 16-03-2005 Day 2
1 05-03-2005 Day 1
DROP TABLE t1;

14
mysql-test/t/func_if.test
View File

@ -61,3 +61,17 @@ drop table t1;
# Bug #5595 NULLIF() IS NULL returns false if NULLIF() returns NULL
#
SELECT NULLIF(5,5) IS NULL, NULLIF(5,5) IS NOT NULL;
#
# Bug #9669 Ordering on IF function with FROM_UNIXTIME function fails
#
CREATE TABLE `t1` (
`id` int(11) NOT NULL ,
`date` int(10) default NULL,
`text` varchar(32) NOT NULL
);
INSERT INTO t1 VALUES (1,1110000000,'Day 1'),(2,1111000000,'Day 2'),(3,1112000000,'Day 3');
SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord ASC;
SELECT id, IF(date IS NULL, '-', FROM_UNIXTIME(date, '%d-%m-%Y')) AS date_ord, text FROM t1 ORDER BY date_ord DESC;
DROP TABLE t1;